Oh, Ryan, why do you intrigue us so? Mr Gosling has been chatting to MTV about upcoming movie, Gangster Squad (check out the trailer below) and he dropped in a cryptic line about co-star Emma Stone owing him some cash. 

Gangster Squad marks the second on-screen romance for Gosling and Stone, so the signs point to another film together, but when he was asked about that very subject, Gosling only had this to say: "Whatever it takes to get my money back, because she owes me money and I won't forget about it."

What could it possibly be? Is it naughty? If so, we'd imagine the money transfer would be going the other way, given Gosling's stock as a Hollywood hunk. Perhaps, and hopefully it isn't, some boring story about him buying her lunch and playfully not being a gentleman.

In the same interview, Gosling opened up about just how gangster Gangster Squad is. "Well I guess I don't really know. We were playing cops, ultimately," he said about not knowing how to act like a gangster. "And cops who had to sort of behave in way that they wouldn't necessarily choose to but they had no choice, but it was incredible -- this is very different from the real story, in some ways the real story is even more surreal and unbelievable because these men actually did this."

Gangster Squad trailer: